#45896 [NEW]: Something causing Multibyte regualr expressions to become 'empty'

[email protected] ("quick dot webmaster at gmail dot com")
Newsgroups php.bugs
Message-ID <[email protected]>
From:             quick dot webmaster at gmail dot com
Operating system: Redhat
PHP version:      5.2.6
PHP Bug Type:     Strings related
Bug description:  Something causing Multibyte regualr expressions to become 'empty'

Description:
------------
Hi,

If you try to add a Korean character to a Regular Expression with
setlocale and mb_encoding configured then it will cause PHP to not properly
process the regular expression and will cause PHP to return the following
error:

Warning: mb_ereg_search() [function.mb-ereg-search]: Empty regular
expression

Reproduce code:
---------------
http://pastebin.ca/Cf42azGD

Password is moo

Expected result:
----------------
The Regular Expression should return the number 2.

Actual result:
--------------
Warning: mb_ereg_search() [function.mb-ereg-search]: Empty regular
expression

-- 
Edit bug report at http://bugs.php.net/?id=45896&edit=1
-- 
Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=45896&r=trysnapshot52
Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=45896&r=trysnapshot53
Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=45896&r=trysnapshot60
Fixed in CVS:                 http://bugs.php.net/fix.php?id=45896&r=fixedcvs
Fixed in release:             http://bugs.php.net/fix.php?id=45896&r=alreadyfixed
Need backtrace:               http://bugs.php.net/fix.php?id=45896&r=needtrace
Need Reproduce Script:        http://bugs.php.net/fix.php?id=45896&r=needscript
Try newer version:            http://bugs.php.net/fix.php?id=45896&r=oldversion
Not developer issue:          http://bugs.php.net/fix.php?id=45896&r=support
Expected behavior:            http://bugs.php.net/fix.php?id=45896&r=notwrong
Not enough info:              http://bugs.php.net/fix.php?id=45896&r=notenoughinfo
Submitted twice:              http://bugs.php.net/fix.php?id=45896&r=submittedtwice
register_globals:             http://bugs.php.net/fix.php?id=45896&r=globals
PHP 4 support discontinued:   http://bugs.php.net/fix.php?id=45896&r=php4
Daylight Savings:             http://bugs.php.net/fix.php?id=45896&r=dst
IIS Stability:                http://bugs.php.net/fix.php?id=45896&r=isapi
Install GNU Sed:              http://bugs.php.net/fix.php?id=45896&r=gnused
Floating point limitations:   http://bugs.php.net/fix.php?id=45896&r=float
No Zend Extensions:           http://bugs.php.net/fix.php?id=45896&r=nozend
MySQL Configuration Error:    http://bugs.php.net/fix.php?id=45896&r=mysqlcfg
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